13638777894

Names of 13638777894

• Cardinal: 13638777894 can be written as Thirteen billion, six hundred thirty-eight million, seven hundred seventy-seven thousand, eight hundred ninety-four.

Scientific notation

• Scientific notation: 1.3638777894 × 10¹⁰

Factors of 13638777894

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 12
• Sum of prime factors: 268

Divisors of 13638777894

• Number of divisors d(n): 252
• Complete list of divisors:
  1 2 3 6 7 9 14 18 21 27 29 42 49 54 58 63 81 87 98 126 147 162 174 189 203 227 243 261 294 378 406 441 454 486 522 567 609 681 729 783 841 882 1134 1218 1323 1362 1421 1458 1566 1589 1682 1701 1827 2043 2349 2523 2646 2842 3178 3402 3654 3969 4086 4263 4698 4767 5046 5103 5481 5887 6129 6583 7047 7569 7938 8526 9534 10206 10962 11123 11774 11907 12258 12789 13166 14094 14301 15138 16443 17661 18387 19749 21141 22246 22707 23814 25578 28602 32886 33369 35322 35721 36774 38367 39498 41209 42282 42903 45414 46081 49329 52983 55161 59247 66738 68121 71442 76734 82418 85806 92162 98658 100107 105966 110322 115101 118494 123627 128709 136242 138243 147987 158949 165483 177741 190907 200214 204363 230202 247254 257418 276486 295974 300321 317898 322567 330966 345303 355482 370881 381814 386127 408726 414729 476847 533223 572721 600642 613089 645134 690606 741762 772254 829458 900963 953694 967701 1035909 1066446 1112643 1145442 1158381 1226178 1244187 1336349 1430541 1599669 1718163 1801926 1935402 2071818 2225286 2316762 2488374 2672698 2702889 2861082 2903103 3199338 3337929 3436326 3732561 4009047 4291623 4799007 5154489 5405778 5806206 6675858 7465122 8018094 8108667 8583246 8709309 9354443 9598014 10013787 10308978 11197683 12027141 15463467 16217334 17418618 18708886 20027574 22395366 24054282 26127927 28063329 30041361 30926934 33593049 36081423 46390401 52255854 56126658 60082722 67186098 72162846 78383781 84189987 92780802 108244269 139171203 156767562 168379974 216488538 235151343 252569961 278342406 324732807 470302686 505139922 649465614 757709883 974198421 1515419766 1948396842 2273129649 4546259298 6819388947 13638777894
• Sum of all divisors σ(n): 37116692964
• Sum of proper divisors (its aliquot sum) s(n): 23477915070
• 13638777894 is an abundant number, because the sum of its proper divisors (23477915070) is greater than itself. Its abundance is 9839137176

Bases of 13638777894

• Binary: 1100101100111011110011110000100110₂
• Hexadecimal: 0x32CEF3C26
• Base-36: 69K6CDI

Squares and roots of 13638777894

• 13638777894 squared (13638777894²) is 186016262441863075236
• 13638777894 cubed (13638777894³) is 2537034488116584570703615632984
• The square root of 13638777894 is 116785.1784003433
• The cube root of 13638777894 is 2389.2328959737

Scales and comparisons

• 13,638,777,894 seconds is equal to 433 years, 34 weeks, 6 days, 5 hours, 24 minutes, 54 seconds.
• To count from 1 to 13,638,777,894 would take you about eight hundred sixty-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 13638777894 cubic inches would be around 199.1 feet tall.

Recreational maths with 13638777894

• 13638777894 backwards is 49877783631
• 13638777894 is a Harshad number.
• The number of decimal digits it has is: 11
• The sum of 13638777894's digits is 63
• More coming soon!